Question 294816
6 is the y-intercept.  the formula is Ax( x is squared) +Bx+C   C = 6 and is the y - intercept as said   -B/A*2  so 7/1* 2= 7/2 then make negative so - 3 1/2 negative three and a half. That is the x yyou will use to find the vertex.   so y= -3 1/2^2 + 7* -3 1/2 + 6.  You get  12.25 + - 24.5+ 6. This adds up to -6.25. your coordinate is -3 1/2, -6 1/4    so the vertex of the parabula is - 3 1/2, -6 1/4. the y-intercept is 0,6. to find additional points substitute #s in for x like 0,1,2  I hope i helped. I'm sorry if i didnt if u dont no what a parabula is then google it, but if u do u know its the U shape created with an x^2


***** For the formula A=1  B=7   C=6